Refrigerating apparatus



3 ShefftS-Sheet l Filed June Sq,

'REFRIGERATING Feb. Mh w25.

Feb. A17, 1925. 1,526,964

L.. G. COPEMAN v `RERIGERATING APPARATUS Filed June 9, 1922 5 sheets-sheet 2 l l l (l f i gn. enfer: y/g" I llayc Capenan @,Jwm.

`.o 529,114 however', it is possi Parchi-ed Feb. i7, 1925.

Unio sr LLOYD e. Corman, or more:com.V

nnrnrennnrme Arrnanrus.

Application led .Tune 9, 41922. Serial No. 566,@30.

To all whom t may concern:

Be it known 'that I, LLOYD G.. CoPnMAN, citizen ofthe United States, residing at Flint, `in the county of Genesee and State of Michigan, have invented certain new and useful Improvements in Re'igerating Apparatus, of which the following is a speci; fica-tion.

This invention relates to rerigerating apparatus and has for its'ob'ect a refrigerating apparatus which uti iaes the circulation of cold water throughV the refrigerating box as a cooling medium. This circulation is controlled by a valve in the water line which is regulated by a thermostat, preferably placed in the Water line vso that when the water in thel coils in the box has absorbedpll fthe heat that is possible, a

' new supply cfiresh cold water is drawn in' the coils. This much of the construction is oldl and is described and claimed in my pre.

. tion and ascend in the opposite food cham# ber, and theninto the condensing chamber. This arran ement achieves very goed results, but even etter resultsare to be had 40 by the improvement whic I 'hereinafter claim and describe. l v

- This im rovement consists in. a. structure so arran that the cold air will pass down the `bac l of the refrigerating box' and ascend along the iront of the box adjacent `the doors which .are the warmest regions in the refri erator.- Preferably the same condensing c amber'isycmployed as is described and claimed in application No.

le todo away with this condensing chamber where the coils are exposed in a coldair passageway iat 1 the `back of the refrigerator which is in the interior of the back wall. 'This coni ,stitutes a very valuable improvement in ob- F. taining-better results circulatlon, .as 1t being drawn'.

permits the chilling of the air during the entire descentof the air fromthe topof the -box to the bottom. This will be more fully described in the detailed description followln y `n the drawings Fig. l. is a vertical cross section of the apparatus taken from side to side.

Fig. 2 is a vertical cross section 'of th -apparatus `taken from front to back.

Fig. 3V is a top plan view of the apparintus( Fig. 4 is a fragmentary section taken'on the line 4.-4 of Fig. 2.

As described-in my previous applications, the water is taken into the' box through an intake pipe; a, ascends to the header l), where it is distributed through coils ci at the sides, coils e at thel back and coils ,f through the partition. The coils dvalso cross the bottom of ,the food chamber. as is shown in Fig. y1. In the top of the box isY the condensing chamber g provided with a tray It to collect and discharge the moisture that drops from the condensing coils t.

These 4,condensing coilsA Vconnect through A pipe j with the header b and disehar ethrough the pipe .7c into the partition? s.' l

f. These coils all reunitein the 'lower header This lower header has. tvvor 4 more discharge pipes-#two are y shown-one, pipe n connects with the usual service lines in the vhouse or buildin the other, pipe o, is a waste line in Whic is a check valve -r held closed by a splring of sullicient strength to prevent the i'scharge of water, therefrom when service -water waste line is' also controlled by a valvgg, operated b "a motor M. This motorie controlled y athermostat t, which has a The discharge :from H? g barrel u inserted inthe upper header h. i I

have not described and shown the tlfermo full applFr istat, theymotor and. transmission connec-` ltion in detail, forthereason that these are mi,

icationsjand are part of the present x invention 'exce t as constituting the environ- `ment in `Awhic my invention is located.

The present invention resides in the arrangement o the coils and passageways to achieve the best possible airy circulation. It

will be' noticed that the back -coils e that are .laid in the stone work 'a (the stone work is described and claimed irimy previous application No. 477,906) are ,exposed somewhat at the rear and that e. cold an' i` Way v is located at the rear of the boxbetween the encasin stone work and insulating walls. Prefera l another set of coils w leads fofi' from the connecting pipe 7c and is hung in the cold air passageway c, as is clearly shown in Figs. 2 and 3. At the bottom of the cold 'air passageway, slightly above the Hoor of the food chamber are a pair of openings m, these permit the lair descendingthrough the cold air duct discharging into the bottom of the food chambers. .It then ascends along the front of the food chamber through the ports 1/ into the condensing chamber g.

Now, obviousl the water pipes which are not encased in t e stone work will chill the air more than the pipes which are encased in the stone work. This results in the condensing pipes .in the condensing chamber and exposedpipes in the cold air duct causing the air to chill and descend. On the other hand the warmest region in the refrigerator will be adjacent the front doors which have no coils in their walls. Conse- (juently the air can descend in the cold air c uct and rise in the front of the food chamber along the door, creating a complete cycle .of circulation'through the condenser chamber or top air passage.

By utilizing a condensing chamber above the food chambers', together with the moisture collecting tray, themoisture in the air collects on the pipes in the condensing cham- 'her and consequently can be taken care of and discharged without getting the food chambers wet; otherwise it would be found that the tops of the food chambers would condense the water and there wouldA be an objectionable dripping therein. Any moisture that collects in the back cold air duct caneasil be collected at the bottom of this duct andy led away. There would be very little if any moisture when the condensing chamberl is used at the top, however, if the condensing coils are eliminated and only the cold air 'ct coils used in the interest of i getting the greatest cubical capacity for the tood'chamber, then the exposed coils in the rear duct will act as condensing coils and the molsture will be collected in this chamber. I prefer, however, to use the condens- 1 ng chamber, but it would be possible that fairly good results can be achieved by eliminating the condensing coils and using simply an a1r passage at lthe top, or for that matter the alr passage could be leliminated and only aport used to connect the top of the cold 4sur duct w1th the top of the food chamber.

What I claim Sis: l

1. In a refrigerating apparatus, the combmatlon of a box provided with a food chamber, and a door, and provided with stone work lining for the food chamber, coils for circulating cold water through said stonework lining, said coils being partially exposed on the rear side of the lining at the back of the food chamber, a cold air duct located between the rear lining and the wall of the box and arranged to take air from the top of the box and cause same to descend and be discharged in the bottom of the food chamber, thesaid box being arranged to cause the air to ascend in the warm region at the front of the food chamber adjacent the door.

2. In a refrigerating,apparat-us, the combination of a box provided with a food chamber and a door and a lining for said food chamber, said box provided also with an air passageway from the front of the food chamber across the top of the box above the lining and with a cold air duct leading from said passageway at the rear of the box and to the rear of the lining of the food chamber, and means for circulating cold water through the lining of the refrigerator and around the said cold air duct, said duct discharging into the lower 'portion of the food ehamlier at the rear, whereby the chilled air descends in said duct and the warm air ascends adjacent the front of the vfood chamber and passes through the said top passageway to the said cold air duct.

3. In a refrigerating apparatus, the combination of a box provided with a food chamber and a condensing chamber above the food chamber, the said box arranged to provide a cold airl duct leading from the condensing chamber along thc rear of the food chamber and discharging into the bottom thereof, concealed coils for circulating cold water around the food chamber, ex-

posed coils for circulating cold water in thev condensing chamber and exposed coils for circulating cold water in the said cold air flue whereby circulation of the warm air'up the front of the food chamber into the port connecting the food chamber and the condensing chamber, thence through the condensing chamber and down the cold air flue, is promoted.

4. In a refri'gerating apparatus, the combination of a box provided with a food chamber and door and a stone work lining for the food chamber, coils, for circulating cold water, imbedded in said stone work and partially exposed at the rear of the stone work, the said box being provided with an air passageway across the top above the stone work and a passageway down the back between the stone work and the wall of the box forming a cold airduct that discharges cold air near the bottom of the food chamber thereinto, while the warm air ascends along the -doors and discharges into the top passageway at the front and top of the food chamber. 4 v

5.'I n a refrigerating apparatus, the combination'of a box provided with' food cham- -food chamber and across the top above the lining and a passageway down the back behind the lining, coils, for circulating cold water, imbedded in said lining and partially exposed in the rear of the lining at the back4 of the box, the said passagewa own the back forming a cold air duct ischarging near the bottom of the food chamber thereinto,

whereby the warm air will rise adjacent the door of the food chamber and discharge into the top passage-way throu hv a port at thetop in' thebfront of the foo chamber.

v6. In a refrigerating apparatus the combinat-ion of a box provided with a food the said box also lrovided wit an air passageway leading rom thetop and front of the-food chamber across the top of the box above the lining anda passageway leading down the back of the box behind the lining to form a cold air duct discharging near the bottom of the food chamber thereinto thereby causing warm vair to ascend along the door and discharge into the top air passage-l way and descend through the said cold air duct, means for circulating Water throu h the lining and a separate set of coils or circulating cold water located in vthe cold air duct for 'chilling the air descending therefrom. b y

7. v In a refrigeratng apparatus,- the combination of a box provided Witha food chamber and a door, said box also provided with a condensin@r chamber at the top and a cold air duct lea ing from said condensingchamber and running down at the rea-r between the wall of the -food chamberand the exterior walls of the box, means for-circulating fresh pressure driven water through the bination .of a box provl .for circulating fresh chamber and a door and a linin for the box,

walls of the food chamber` and throu h the condensing chamber and along the co d air duct, said cold air duct discharging near the bottom of the food chamber. thereinto, thereby causingA the warm air to rise along the door and discharge into the condensin chamber at the top and front of the foo chamber.

8. In a rerigerating apiaratus, the comed with a vfood chamber and a door, said box also rovided at the top with a condensing cham er communicating at the lfront with lmid food Achamber and provided at the back with a cold air duct leading therefrom, a stone work encasement for the food chamber, coils y ressure-driven water through the stone wor encasement and. circulating water contiguous to the cold air duct to lchill the same, said cold air duct discharging near' the bottom of the food chamber .thereinto, whereby air is caused to descend.

9. In a refrigerating apparatus, the combination'of a box provided at the top with a condensing chamber and provided below with. a food chamber having a door and a stone work encase'ment for the food cham-,

ber, a cold aii` duct located behind the stone work for circulatin ,cold air from the condensing chamber own the 'back of the stone work and discharging same into the back of the food chamber, a port connecting between the top and front of the food chamber and condensing chamber, and means for circulating cold pressure driven water in the walls of the stone work, in the condenslng chamber, and contiguous to the cold air uct.

Inv testimony whereof I aiiix my signature.

ALLOYD G. oo-PEMAN. 

